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CLUTCH TRANSMISSION MECHANISM.

APPLICATION FILED AFR.18, 191s.

Patented. May 27, 1919. 7? 2 SHEETSMSHEET I. 22 Q3 /5 4 2 9 2? r I P I I In 26 W. G. KRUSE.

CLUTCH TRANSMISSION MECHANISM.

APPLICATION FILED APR. 18. 19:8.

1,304,99Q. Patented May 27, 1919.

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- To all whom, it may concern:

. .0 Beit known that 1, 'WILLIAM G. Knnsn, a citizen of the United States, residing at Graham, in the county of Pierce and State Specification of Letters-Patent. 1P3 g g fi gfl may 2'? 11%19), Application med Apri118,1918. seria11t'o.a29,a3e. I

drivingflange 6 having a recess 12 provided in its outer periphery for the reception of a plurality of outer shells 13 which are adapted to be connected therewith through of Washington, have invented a new and maleand female connection. Interposed beuseful Improvement in Clutch Transmission Mechanism, of which the following is a specification. v 1

This invention relates to improvements in clutch transmission mechanism, and more particularly to marine clutch transmission mechanism for the forward and reverse speeds, and the object of this improvement is to provide a clutch transmission mechanism wherein the forward and reverse speeds can be attained without being transmitted through gears.

A further object resides in the simplicity of construction, and the rigidityv of the actuating parts, eliminating the frequency of breakage, a condition inherent in marine clutches of the gear transmission type.

Further objects willappear from the following specification, illustrated in the accompanying drawings and .finally pointed out in the appended claims.

Y within said brake In the drawings, Figure 1 is a sectional elevation of the clutch mechanism; Fig. 2' is a side elevation of the clutch as assembled, showing the application of the mechanism for actuating the friction band thereof; Fig. 3 is a view taken along line 2'--2 of Fig. 1; and Fig. 4 is an end view taken along line 33 of Fig. 2. f

Referring more particularly to the drawings, inwhich like reference numerals indicate like parts, numeral 1 represents the drive shaft, preferably of a marine engine, and 1 indicates a secondary shaft disposed in longitudinal alinement therewith and connected thereto for rotary action in the same or opposite direction. Upon the shaft 1 is provided a gear hub 2 fixedly secured thereto, and adjacent this hub is a rotatably disposed gear drum 4 adapted "for axial rotation upon the shaft 1. This gear drum 4 is provided with a cylindrically shaped hub portion 11 which is adaptedto form a bearing for a brake drum 3 disposedfor axial rotation thereupon. 5 are a plurality of differential spider ears rotatably mounted rum 3 in circular alinement around the shaft 1 intermediate thegear hub 2-and the gear drum 4 with which they are in meshing contact. Keyed upon the end of the drive shaft 1 is a circular tween said shells and fixedly secured to said flange by being countersunk therein are longitudinal members 14 whichare adapted to prevent perlpheral displacement of said shells in their contact with said flange.

These shells are each provided' with independently directed flanges 15 herein shown of V-shaped construction and having provlded on their lower ends cylindrically shapedslots for the reception of yielding push bolts 16 actuatedo by compression springs 17. The lower ends of these yielding push bolts are adapted to be normally in contact w1th a sl1d1ng sleeve 18 provided around the secondary shaft 1, and 19 are oorrespondinglyformed push bolts carried by flanges 21 and yieldingly actuated by compression sprlngs 20 disposed therearound. These flanges are secured upon their upper ends to cylindrically shaped shells 22 interposed between the outer shell 23 of the gear drum 4 and the shells 13 connected to the drlvmgflange 6. The shells 22 are connected to the. flange 24 which is keyed to the secondarydrive shaft 1 through male and female connections therewith, and 40 are a plurality of Ion 'tudinal members countersunk upon said fl a nge 24 intermediate the shells 22 for'preventin peripheral displacement thereof. The sliding sleeve 18 '18 connected to alever 25 through rods 2.6

in the usual manner, and this sleeve is disposed around the secondary shaft 1'. and extended to a point short of abutment with the face of the driving flange 6. The outer perlphery of the sleeve 18 is formed with an irregular surface consisting of two depressions 27 and two elevations 28 whereby the heads of the yielding push bolts 16 and 19 vcan be caused to assume the two contact positions by longitudinally sliding the sleeve along the shaft.

29 is a friction clutch band provided around the periphery of the brake drum 3 not pl1ed to said lever.

tached to a'rigid'frame structure 38 having its two prongs extended upwardly on both sides of the respective ends of the friction clutch band 29 to prevent lateral displacement thereof.

34 is an, elongated member formed-with a yoke having converging ends that are adepted to be supported u on the respective flanged ends of the frictlon clutch band, and 31 are compression springs that are located intermediate of thflanged ends of the friction clutch band for sustaining the same m contact with the converging ends of vthe yoke-shaped member 34 and this elongated member is movable transversely said friction clutch band to effect. the compression of the two. ends thereof thereby causing the brake-band to frictionally engage the brake drum 3 and arrest its free rotary movement upon the shaft 1. The elongated member 34 is connected to a lever 25 and this lever is fixedly secured to a transverse shaft 35 -loosel mounted upon the frame 33.

36 1s a yoke shifter member ke ed to the shaft 35, a proximately, centra thereof and adapte to pivotally engage t e hub 24 on both sides thereof, whereby pressure upon .the lever 25 will actuate the elon ated mom'- ber 34 to have its converging-en s slide 1ongitudinallyT upon the converging flanged ends of the brake band 29 and thus urge the two ends into compression, or to release the compression of the two flanged ends depending upon' the direction of the pressure a The actuationof t e lever likewise urges the sleeve 18 which is connected thereto by rods 26, to s ide longitudinally upon the secondary drive shaft 1', and thus actuate the engaging mechanism, the function of which is to be hereinafter de- -scribed.

The operation of the clutch transmission mechanism may be described as follows: To

establish forward speed from the neutral position, as herein shown, the lever 25 would be actuated to shift the slidingsleeve 18 forward longitudinally upon 'the second shaft-1 until the yielding push bolts 16 and 19 have been urged from the depressed positions 27 to rest incontact upon the elevated positions 28 v of the sleeve, thereby expandin the shells 22, to which the yielding push bofi 19 is attached, to frictionally engage the inner periphery of the shell 23 of the 'ar drum 4 and to urge the shells 13, to w ich the yielding push bolt 16 is attached, to

. frictlonally eng e the inner periphery of i the shells 22.

transmitted from the drive shaft 1 through 80 he power would thus be the flange 6 thereof through the interlocked shells 13, 2.2 and 23, by frictional contact, to the flange '24, which is keyed to the secondas the drive shaft 1. I v

y by Letters Patent, is:

drive and a driven shaft, a

arv drive shaft 1, actuating said secondary 1 To pass fromth'e neutral position. to re-. d I

verse the lever 25 would be actuated to shift the sleeve 18 rearwardly upon the shaft 1' and also to cause the elon ted yoke member 34.- to compress the flange ends of the frie tion clutch band between the converging ends of the oke thereof whereupon th band would rictionally engage 'the brake drum 3 and arrest its rotar movement. The arrestation of the brake rum 3 would instantaneously set into rotation the spider gears 5, whlch would transmit the power to' the gear drum 4 and tion to the direction of rotation of the drive I shaft 1.

It is obviousthat the shells 13, are not in frictional contact with the shells 22, by reason of the fact that the. rearward shlfting of the sliding sleeve 18 did not effect the expansion of t e yielding push bolt 16, hence thereverse rotation of the shells 13 with respect to the shells 22 would be neutral in so far as effecting the "reverse action of. the transmlsslon.

While I have illustrated anddescribed my preferred form of construction, it is to be understood that I do not selfto the detailsof mechanical designas herein illustrated. I "am'fully cognizant of the fact that various changes in the form of care to limit myloo construction'fcan be made to which I would I 'WhatI claim as new,

1. A clutch transmission comprising a plurality of drums carried by said drive shaft, one of said drums ada ted'to be fixedly secured thereto and anot er'of said drums adapted to be rotatably mounted thereupon and carrying mechanism tocau'se the same tov .be diflerentiall actuated thereby, a drum adapted to be edly securedto said driven shaft, and a sleeve longitudinally movable upon said driven shaft for bringing said fixedly secured drums into frictionalcontact to establish the forward speed of said clutch transmission, =and means whereupon the reand desire protect versal 'of longitudinal movement of said sleeve upon said driven shaft will bring into frictional contact only the drum of said driven shaft with the rotatably mounted drum of said drive shaft and'actuate said mechanism to differentially reverse the rotation of said rotatably-mounted drum and thereby establish the reverse speed of said clutch transmission.

' 2. A clutch transmission comprising a drive and a driven shaft, a plurality of drums carried by said drive'shaft, one of said drums adapted to be fixedly secured thereto and another of said drums adapted tablish the forward speed of such clutch transmission, and means engageable with said brake drum whereupon the reversal of longitudinal movement of said sleeve upon said driven shaft will bring into frictional contact only the drum of said driven shaft with the rotatably mounted drum of said drive shaft and arrest the rotation of said brake drum and thereby actuate said spider gears to reverse the rotation of said rotatably-mounted drum for establishingthe reverse speedof said clutch transmission.

3. A marine clutch transmission comprising a drive and a driven shaft, a plurality of drums provided on said drive shaft, one of said drums adapted .to be fixedl secured thereto and another of said rums adapted to be rotatably mounted thereupon means for reversing the rotation of'the sai rotatably mounted drum, a drum adapted to be fixedly secured to said driven shaft, a sleeve comprising shoulders longitudinally movable upon said driven shaft for bringmg said fixedly secured drums into frictional contact to establih the forward speed of said marine clutch transmission, means adapted to actuate the reversing means of said rotatably mounted drum, whereupon the reversal of longitudinal movement of said sleeve upon said driven shaft will bring into frictional. contact only the drum of said driven shaft with the rotatably mount ed drum of said drive shaft and allowthe fixedly secured drum of said drive shaft to rotate neutrally and thereby establish the reverse speed of said marine clutch transmisslon.

4. A marine clutch transmission comprising a drive and a driven shaft, a plurality of drums provided on said drive shaft, one of said drums adapted to be rotatably actuated thereby and another of said drums adapted to be rotatably mounted thereuipon, a gear hub fixedly secured to said rive shaft, a brake drum loosely mountedintermediate said hub and Said rotatably mounted drum and provided with a plurality of with said hub and said rotatabl mounted drum, to said driven shaft, a sleeve longitudinally mdvable upon said driven shaft and ada ted to selectively actuate said drums into rictional contact, and means for actuating said sleeve and said brake drum whereupon said rotatably mounted drum would be reversed by said spider gears and would be brought into frictional contact with the drum of said driven shaft and thereby reverse the speed of said marine clutch transmission.

"Signed by me at Seattle, Washington, this 30th day of March, 1918.

LIAM G. KRUSE.

Witnesses:

E. B. HERALD, R. J. Coon.

a drum adapted to be fixe ly secured" spider gears disposed in meshing contact 

